Threat landscape
high

CPython: Mehrere Schwachstellen

WID-SEC-2026-2044 · first 24.06.2026 · updated 26.10.2026 · CVSS 10,0

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What it is about

Python ist eine universelle, üblicherweise interpretierte, höhere Programmiersprache. Ein Angreifer kann mehrere Schwachstellen in CPython ausnutzen, um Dateien zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

  • Dateien zu manipulieren
  • Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen

Am I affected?

Affected according to the BSI:

  • Google Container-Optimized OS
  • Red Hat Enterprise Linux
  • Fedora Linux
  • RESF Rocky Linux
  • SUSE Linux
  • Open Source Python CPython <3.15.0
  • SUSE openSUSE
  • Oracle Linux
  • IBM App Connect Enterprise
  • Dell Secure Connect Gateway <5.36.00.16

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • Open Source Python CPython 3.15.0
  • Dell Secure Connect Gateway 5.36.00.16

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.

Information and sources

and 57 more sources in the original advisory

CVE: CVE-2026-0864, CVE-2026-11940

Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.

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